Good day all

One newbie here needs a bit of help regarding sounder
wattage. All other variables being equal, how much
advantage is a 1KW (Tru The Hull) sounder over a similar
500 watt model?

A second question is how much will a fairing block
improve the display? The assumption is it will provide a
more stable picture at higher speeds. I boat in Alaska
where 1000 foot depths can occur as little as three
quarters of a mile from shore. Thanks - Cap'n Phil

Hi Cap'n Phil,

In general doubling the output power will increase the depth performance by 41%. To double the depth performance would require a fourfold increase in output power, all else being equal.

The transducer will require clear unaerated (no bubbles) water. If air bubbles are flowing past the face of the transducer it will very badly degrade the performance. Fairing blocks are not required for all transducers - it depends on the shape of that part of the transducer that's in the water. If the source of air bubbles is some other protrusion (like a thru hull fitting in front of the depth transducer) then a fairing block is unlikely to help.

--
Best Regards,

Bert van den Berg
CruzPro Ltd.
www.cruzpro.com
35 Keeling Road, #A4
Henderson 1008
New Zealand

Tel: 64-9-838-3331
Fax: 64-9-838-3332


wrote in message ...
Good day all

One newbie here needs a bit of help regarding sounder
wattage. All other variables being equal, how much
advantage is a 1KW (Tru The Hull) sounder over a similar
500 watt model?

A second question is how much will a fairing block
improve the display? The assumption is it will provide a
more stable picture at higher speeds. I boat in Alaska
where 1000 foot depths can occur as little as three
quarters of a mile from shore. Thanks - Cap'n Phil

In article ,
wrote:

Good day all

One newbie here needs a bit of help regarding sounder
wattage. All other variables being equal, how much
advantage is a 1KW (Tru The Hull) sounder over a similar
500 watt model?

A second question is how much will a fairing block
improve the display? The assumption is it will provide a
more stable picture at higher speeds. I boat in Alaska
where 1000 foot depths can occur as little as three
quarters of a mile from shore. Thanks - Cap'n Phil

One other thing to note here is, Frequency has far more effect
on Maximum Sounding Depth than Output Peak Pulse Power. If
your looking at only the top 100 ft, for fishing, then 200 Khz
is what you want, and you don't need more than 100 Watts PPP.
If your looking for the bottom and it is over 200 Fathoms, then
50 Khz is for you and 200-500 watts PPP, will certainly help.
If you down past 300 Fathoms, and your looking for those elusive
King Crab, the 28 Khz and 1-2K Watts, is going to be your friend.

Another note here, as well, Resolution is the Inverse of Frequency.
If your looking for fish, and want to see individual fish, like those
elusive Spring King Salmon, then 200 Khz is your friend. Otherwise,
your not going to see individual fish, with a 50 Khz or 28 Khz machine.

--
Bruce in alaska
add path after fast to reply

On Mar 13, 3:20*pm, wrote:
Good day all

One newbie here needs a bit of help regarding sounder
wattage. All other variables being equal, how much
advantage is a 1KW (Tru The Hull) sounder over a similar
500 watt model? *

A second question is how much will a fairing block
improve the display? *The assumption is it will provide a
more stable picture at higher speeds. *I boat in Alaska
where 1000 foot depths can occur as little as three
quarters of a mile from shore. *Thanks - *Cap'n Phil

The higher output transducer will help with readings in deeper water,
getting better readings when you have a thermocline, and soft bottoms
in deeper water. Now if your operating the boat in say 300 or 400 feet
of water (or more), and want to get a real clear picture of the bottom
for bottom fishing, the higher output is better. But if your operating
in shallow water most of the time, or on the occasion where you do run
to deeper water you really don't care if the bottom picture is
perfect, save your money, you don't need the higher priced unit or
transducer.

In article
,
Capt John wrote:

On Mar 13, 3:20*pm, wrote:
Good day all

One newbie here needs a bit of help regarding sounder
wattage. All other variables being equal, how much
advantage is a 1KW (Tru The Hull) sounder over a similar
500 watt model? *

A second question is how much will a fairing block
improve the display? *The assumption is it will provide a
more stable picture at higher speeds. *I boat in Alaska
where 1000 foot depths can occur as little as three
quarters of a mile from shore. *Thanks - *Cap'n Phil

The higher output transducer will help with readings in deeper water,
getting better readings when you have a thermocline, and soft bottoms
in deeper water. Now if your operating the boat in say 300 or 400 feet
of water (or more), and want to get a real clear picture of the bottom
for bottom fishing, the higher output is better. But if your operating
in shallow water most of the time, or on the occasion where you do run
to deeper water you really don't care if the bottom picture is
perfect, save your money, you don't need the higher priced unit or
transducer.

A Transducer has a Maximum Power Limit but does NOT have a higher "power
output", in, and of itself. The Power Output is determined by the Final
Transmitter Stage Design, not the Transducer size, or design.

--
Bruce in alaska
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